National strategic framework for cyberspace security consisting of a firewall, an antivirus software, and systems to filter spam and its contents. Agency (DARPA), with the aim of allowing communication among different types of computers and computer networks. TCP/IP is, still today, used by the Internet. Web defacement An attack carried out against a website and consisting in modifying the contents of the homepage or of other pages of the website. UTM – Unified Threat Management An integrated security product to protect from multiple threats, 44